Depth Profiles of Geochemistry and Organic Carbon from Permafrost and Active Layer Soils in Tundra Landscapes Near Lac de Gras, Northwest Territories, Canada
Permafrost and active layer samples from 24 sites were collected to examine the vertical and spatial distribution of water content, organic matter content and soluble cations. Water, organic matter and soluble ion contents varied across depths. Vertical patterns also varied between terrain types. Ne...
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ftcarletonuniv:oai:curve.carleton.ca:27340 2023-05-15T17:46:39+02:00 Depth Profiles of Geochemistry and Organic Carbon from Permafrost and Active Layer Soils in Tundra Landscapes Near Lac de Gras, Northwest Territories, Canada Subedi, Rupesh 2017 https://curve.carleton.ca/abf8a0d9-19e1-4437-8677-d3f44bb65673 http://catalogue.library.carleton.ca/record=b3963903 https://doi.org/10.22215/etd/2017-11793 unknown https://curve.carleton.ca/abf8a0d9-19e1-4437-8677-d3f44bb65673 http://catalogue.library.carleton.ca/record=b3963903 https://doi.org/10.22215/etd/2017-11793 Thesis/Dissertation 2017 ftcarletonuniv https://doi.org/10.22215/etd/2017-11793 2022-01-23T08:16:29Z Permafrost and active layer samples from 24 sites were collected to examine the vertical and spatial distribution of water content, organic matter content and soluble cations. Water, organic matter and soluble ion contents varied across depths. Vertical patterns also varied between terrain types. Near-surface solute enrichment of permafrost was evident at some sites in each terrain type, but the majority of sites had lower cation contents in near-surface permafrost than in the active layer. Active layer organic materials from peatlands and wetland terrain were solute rich in comparison to mineral soils of till blanket, till veneer or esker terrains at similar depth. In the Lac de Gras area, organic soils are enriched with solutes relative to tills or glaciofluvial deposits, and since the organics are primarily at the surface or within the active layer, the active layer is solute rich with respect to underlying mineral soil permafrost. Thesis Northwest Territories permafrost Tundra CURVE - Carleton University Research Virtual Environment Northwest Territories Canada Lac de Gras ENVELOPE(-110.501,-110.501,64.500,64.500) |
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Open Polar |
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CURVE - Carleton University Research Virtual Environment |
op_collection_id |
ftcarletonuniv |
language |
unknown |
description |
Permafrost and active layer samples from 24 sites were collected to examine the vertical and spatial distribution of water content, organic matter content and soluble cations. Water, organic matter and soluble ion contents varied across depths. Vertical patterns also varied between terrain types. Near-surface solute enrichment of permafrost was evident at some sites in each terrain type, but the majority of sites had lower cation contents in near-surface permafrost than in the active layer. Active layer organic materials from peatlands and wetland terrain were solute rich in comparison to mineral soils of till blanket, till veneer or esker terrains at similar depth. In the Lac de Gras area, organic soils are enriched with solutes relative to tills or glaciofluvial deposits, and since the organics are primarily at the surface or within the active layer, the active layer is solute rich with respect to underlying mineral soil permafrost. |
format |
Thesis |
author |
Subedi, Rupesh |
spellingShingle |
Subedi, Rupesh Depth Profiles of Geochemistry and Organic Carbon from Permafrost and Active Layer Soils in Tundra Landscapes Near Lac de Gras, Northwest Territories, Canada |
author_facet |
Subedi, Rupesh |
author_sort |
Subedi, Rupesh |
title |
Depth Profiles of Geochemistry and Organic Carbon from Permafrost and Active Layer Soils in Tundra Landscapes Near Lac de Gras, Northwest Territories, Canada |
title_short |
Depth Profiles of Geochemistry and Organic Carbon from Permafrost and Active Layer Soils in Tundra Landscapes Near Lac de Gras, Northwest Territories, Canada |
title_full |
Depth Profiles of Geochemistry and Organic Carbon from Permafrost and Active Layer Soils in Tundra Landscapes Near Lac de Gras, Northwest Territories, Canada |
title_fullStr |
Depth Profiles of Geochemistry and Organic Carbon from Permafrost and Active Layer Soils in Tundra Landscapes Near Lac de Gras, Northwest Territories, Canada |
title_full_unstemmed |
Depth Profiles of Geochemistry and Organic Carbon from Permafrost and Active Layer Soils in Tundra Landscapes Near Lac de Gras, Northwest Territories, Canada |
title_sort |
depth profiles of geochemistry and organic carbon from permafrost and active layer soils in tundra landscapes near lac de gras, northwest territories, canada |
publishDate |
2017 |
url |
https://curve.carleton.ca/abf8a0d9-19e1-4437-8677-d3f44bb65673 http://catalogue.library.carleton.ca/record=b3963903 https://doi.org/10.22215/etd/2017-11793 |
long_lat |
ENVELOPE(-110.501,-110.501,64.500,64.500) |
geographic |
Northwest Territories Canada Lac de Gras |
geographic_facet |
Northwest Territories Canada Lac de Gras |
genre |
Northwest Territories permafrost Tundra |
genre_facet |
Northwest Territories permafrost Tundra |
op_relation |
https://curve.carleton.ca/abf8a0d9-19e1-4437-8677-d3f44bb65673 http://catalogue.library.carleton.ca/record=b3963903 https://doi.org/10.22215/etd/2017-11793 |
op_doi |
https://doi.org/10.22215/etd/2017-11793 |
_version_ |
1766150436188848128 |